Improvement in wagon-brakes



R. BROWN 8L W. M. GROZE.

Wagon-Brakes.

910,147,096, Patented Feb.3,1874.

UNITED f STATES PATENT OFFICE.

IMPROVEMENT IN WAGON-BRAKES.

Specification forming part of L'etters Patent No. 147,096, dated February 3, 1874; application filed January 3, 1874.

To all whom it may concern Be it known that we, ROBERT BROWN and VILLIAM M. GROZE, of Dayton, in the county of Montgomery and State of Ohio, have invented a new and valuable Improvement in Brakes; and we do hereby declare that the following is a full, clear, and exact description of the construction and operation ot' the same,

reference being had to the annexed drawings,

Y are designed both for wagons and railroadcars; and it consists in open cams applied on a rocking bar, which has its bearings in clips on the brake-bar, in combination with lugs or pins, which enter the said cams, and which are applied to hangers to which the brakebloeks are pivoted, as will be hereinafter expla-ined.

The following is a description of our improvement In the annexed drawing, A A. represent the rear wheels of a wagon; B, the axle; O, the perch, and O C the rear braces of the perch, which may be ot' any well-known construction. l) designates the brake-bar, which is rigidly secured to the braces C C beneath the perch. On the ends of the brake-bar D bearings J J are rigidly secured, the clipping portions h of which are constructed with hinging eyes j, to which hooded hangers E are attached by means of pivots i. The brake-bar D is firmly sustained against any pressure which may be brought against it by means of tie-rods b bf, which pass through said bar, and are secured to the axle B. Beneath the brake-bar l) is a rocking bar, a., 011 which a lever, G, and two cams, I) b, are keyed. The bar a is sustained by the bearings J J, and it may be rocked by connecting its lever Gr to a lever or treadle located conveniently to the drivers seat. F F are the brake-shoes, which are pivoted to ears fj', formed on the hangers E E, so that they will accommodate themselves to the peripherics of the wheels. The cams b b have openings through them, in which are received lugs or pins c c, which are formed 011 the hangers E E, thus attaching the cams loosely to the hangers.

It will be seen from the above description that the brakes are applied by drawing forward the lever G, which movement forces the cams b against the hangers E, and presses the shoes F against the wheels. When the lever G is moved backward, the cams b, acting on the lugs or pins c, will forcibly withdraw the shoes from the wheels. The cams and the end bearings of the bar a are prevented from becoming' clogged with ice or mud by means or' the hooded hangers E.

That we claim as new, and desire to secure by Letters Patent, is y The open cams i; b on rocking bar n, in combination with lugs or pins e, hooded hinged hanger E, carrying brake-shoes F, and clipping bearings J on brake-bar D, substantially as and for the purposes described.

In testimony that we claim thel above we have hereunto subscribed our names in the presence of two witnesses.

ROBERT BROWN. WILLIAM M. GROZE.

\Vitnesses:

SUMNER T. SMITH, l). M. SMITH. 

